Solid-state trip device with test circuit for an electrical circuit
breaker
    1.
    发明授权
    Solid-state trip device with test circuit for an electrical circuit breaker 失效
    具有电路断路器测试电路的固态跳闸装置

    公开(公告)号:US4761704A

    公开(公告)日:1988-08-02

    申请号:US945540

    申请日:1986-12-23

    CPC classification number: H02H3/044

    Abstract: A test circuit simulates the operation of a multipole electrical circuit breaker, and includes a pair of auxiliary terminals connected by a connection circuit to the input terminals of a bridge rectifier cell whose output is connected in parallel with the respective outputs to two other rectifier cells associated with current transformers. A first resistor delivers a first signal proportional to the maximum intensity of the mains currents. Diodes cooperate with a second measuring resistor of a residual earth leakage current discriminator. Reversing the direction of the test current flow in the test circuit is performed by simply changing the polarity of the test terminals, and enables overcurrent protection and earth leakage protection of the electronic trip device to be checked separately.

    Abstract translation: 测试电路模拟多极电路断路器的操作,并且包括一对辅助端子,其通过连接电路连接到桥式整流器单元的输入端子,该桥式整流器单元的输出端与相应的输出并联连接到两个其他整流器单元相关联 与电流互感器。 第一个电阻器提供与电源电流最大强度成比例的第一个信号。 二极管与残留接地漏电流鉴别器的第二测量电阻器配合。 通过简单地改变测试端子的极性来反转测试电路中测试电流的方向,并分别检查电子跳闸装置的过流保护和漏电保护。

    Electronic trip device comprising a correcting device
    2.
    发明授权
    Electronic trip device comprising a correcting device 失效
    电子跳闸装置,包括校正装置

    公开(公告)号:US5835325A

    公开(公告)日:1998-11-10

    申请号:US57786

    申请日:1993-05-06

    CPC classification number: H02H3/0935 H02H1/046

    Abstract: The trip device with an electronic processing unit which gives a tripping order in terms of the rms value of the current measured by current transformers and of the threshold and time delay setpoints. The non-linearity of response of the current transformers is corrected by a device which modifies the current, threshold, or time delay values. These corrected values enable precise trippings to be achieved in compliance with the values of the current flowing in the circuit breaker. The type of correction is adapted to the circuit breaker rating by parameters obtained by tests and previously stored in a device.

    Abstract translation: 具有电子处理单元的跳闸装置,其根据由电流互感器测量的电流的均方根值以及阈值和时间延迟设定点给出跳闸顺序。 通过修改电流,阈值或时间延迟值的装置校正电流互感器的响应的非线性。 这些校正值使得能够根据在断路器中流动的电流的值来实现精确的跳闸。 校正类型根据通过测试获得的先前存储在设备中的参数适用于断路器额定值。

    Electronic trip device comprising an improved long delay function
    4.
    发明授权
    Electronic trip device comprising an improved long delay function 失效
    包含改进的长延迟功能的电子牵引装置

    公开(公告)号:US5195012A

    公开(公告)日:1993-03-16

    申请号:US719186

    申请日:1991-06-21

    Applicant: Paul Tripodi

    Inventor: Paul Tripodi

    CPC classification number: H02H3/0935

    Abstract: To perform the long delay function of an electronic trip device, a quantity (TLR1) representative of the thermal current state varies proportionally to the difference (I.sup.2 -Is.sup.2) between the square of a value (I) representative of the current flowing in a conductor to be protected and the square of a current threshold (Is). This first quantity (TLR1) is used in combination with a second value (TLR2) to produce a tripping signal when the second value exceeds a preset value (TLR2max). The second quantity preferably increases proportionally to the square (I.sup.2) of the value representative of the current, when the first quantity exceeds a preset threshold (STLR1) and decreases, preferably exponentially, when the first quantity is lower than this threshold.

    Abstract translation: 为了执行电子跳闸装置的长延迟功能,代表热电流状态的量(TLR1)与表示在导体中流动的电流的值(I)的平方之间的差(I2-Is2)成比例地变化 被保护和当前阈值的平方(Is)。 当第二值(TLR2max)超过预定值(TLR2max)时,该第一数量(TLR1)与第二值(TLR2)组合使用以产生跳闸信号。 当第一数量超过预设阈值(STLR1)时,第二数量优选地与代表电流的值的平方(I2)成比例地增加,并且当第一数量低于该阈值时,优选地以指数方式减小。

    Solid-state trip device comprising an instantaneous tripping circuit
independent from the supply voltage
    5.
    发明授权
    Solid-state trip device comprising an instantaneous tripping circuit independent from the supply voltage 失效
    固态跳闸装置包括独立于电源电压的瞬时跳闸电路

    公开(公告)号:US4914541A

    公开(公告)日:1990-04-03

    申请号:US302610

    申请日:1989-01-27

    CPC classification number: H02H3/093 H02H1/063

    Abstract: In a system-powered solid-state trip device, the measurement voltage Vm, representative of the current flowing in the conductor to be protected and applied to the input of an electronic processing unit, can also be applied to the cathode of a thyristor connected in series with the trip coil and receiving on its gate, the tripping orders from the processing unit. A Zener diode is connected between the thyristor gate and the ground so as to set an instantaneous tripping pick-up of the trip device. In this way, a short-circuit in the conductor causes instantaneous tripping of the circuit breaker independently from the value of the supply voltage.

    Abstract translation: 在系统供电的固态跳闸装置中,代表在待保护的导体中流动并施加到电子处理单元的输入端的电流的测量电压Vm也可以应用于连接在晶体管的晶体管的阴极 与跳闸线圈串联并在其门上接收来自处理单元的脱扣命令。 齐纳二极管连接在晶闸管栅极和地之间,以便设置跳闸装置的瞬时跳闸。 以这种方式,导体中的短路将独立于电源电压的值引起断路器的瞬时跳闸。

    Circuit breaker comprising an electronic trip device
    6.
    发明授权
    Circuit breaker comprising an electronic trip device 失效
    包含电子设备的断路器

    公开(公告)号:US5115371A

    公开(公告)日:1992-05-19

    申请号:US577605

    申请日:1990-09-05

    Applicant: Paul Tripodi

    Inventor: Paul Tripodi

    CPC classification number: H02H6/00 H02H3/0935

    Abstract: The circuit breaker comprises a thermistor located in a cold zone, near the front face of the trip device and at least one thermistor located in a hot zone, at the bottom of the circuit breaker case, in proximity to the circuit breaker connection terminals. The temperature difference measured between the hot and cold zones is representative of the temperature rise of the system protected by the circuit breaker and is used to modify the time delay of a delayed tripping function when the circuit breaker closes. The trip device can also take into account the temperature difference existing at the time of the previous trip.

    Abstract translation: 断路器包括位于脱扣装置的前表面附近的冷区中的热敏电阻和位于断路器壳体的底部处于断路器连接端子附近的热区中的至少一个热敏电阻。 在热区和冷区之间测量的温差表示由断路器保护的系统的温度上升,并且用于在断路器闭合时修改延迟脱扣功能的时间延迟。 脱扣装置还可以考虑上次行程时存在的温差。

    Solid-state trip device comprising a zero sequence current detection
circuit
    7.
    发明授权
    Solid-state trip device comprising a zero sequence current detection circuit 失效
    固态跳闸装置,包括零序电流检测电路

    公开(公告)号:US4899246A

    公开(公告)日:1990-02-06

    申请号:US162592

    申请日:1988-03-01

    Applicant: Paul Tripodi

    Inventor: Paul Tripodi

    CPC classification number: H02H3/105

    Abstract: A signal representative of the zero sequence current is obtained from current transformers associated with each phase and with the neutral if applicable by separate summing, in two distinct conductors, of the positive half-wave currents and of the absolute value of the negative half-wave currents produced by the set of current transformers, the difference between the currents flowing through these two conductors being representative of the zero sequence current.

    Abstract translation: 代表零序电流的信号是从与每相相关的电流互感器获得的,并且如果可以通过在两个不同的导体中的两个不同的导体中的正半波电流和负半波的绝对值 由这组电流互感器产生的电流,流过这两个导体的电流之间的差异代表零序电流。

Patent Agency Ranking